A futurist suggests humanity may gain years back—effectively moving backwards in time—within just four years.

Prominent futurist Ray Kurzweil claims that by 2029 humans could reach what he calls “longevity escape velocity,” meaning life expectancy increases at a rate faster than aging itself. In this scenario, for every year lived, more than a year could be added—a twist on the idea of going “backwards in time.” While grounded in medical and technological speculation, experts caution this remains a bold projection, with major challenges like global access and disease still standing in the way.








